Find the points on the sphere with center at the point P-(3,3,3) of radius 3 where the function f(x, y, z) = x – 2y + 2z has its minimal value. Select one: O a. P=(2,3,5) O b. P-(4,1,5) Oc. P=(5,3,2) O d. P-(4,2,1) O e. P-(2,5,1)

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